dlls/kernel/change.c

   1 /*
   2  * Win32 file change notification functions
   3  *
   4  * Copyright 1998 Ulrich Weigand
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winerror.h"
  30 #include "ntstatus.h"
  31 #include "winternl.h"
  32 #include "kernel_private.h"
  33 #include "wine/windef16.h"
  34 #include "wine/server.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(file);
  38
  39 /****************************************************************************
  40  *              FindFirstChangeNotificationA (KERNEL32.@)
  41  */
  42 HANDLE WINAPI FindFirstChangeNotificationA( LPCSTR lpPathName, BOOL bWatchSubtree,
  43                                             DWORD dwNotifyFilter )
  44 {
  45     WCHAR *pathW;
  46
  47     if (!(pathW = FILE_name_AtoW( lpPathName, FALSE ))) return INVALID_HANDLE_VALUE;
  48     return FindFirstChangeNotificationW( pathW, bWatchSubtree, dwNotifyFilter );
  49 }
  50
  51 /****************************************************************************
  52  *              FindFirstChangeNotificationW (KERNEL32.@)
  53  */
  54 HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtree,
  55                                             DWORD dwNotifyFilter)
  56 {
  57     UNICODE_STRING nt_name;
  58     OBJECT_ATTRIBUTES attr;
  59     IO_STATUS_BLOCK io;
  60     NTSTATUS status;
  61     HANDLE file, ret = INVALID_HANDLE_VALUE;
  62
  63     TRACE( "%s %d %lx\n", debugstr_w(lpPathName), bWatchSubtree, dwNotifyFilter );
  64
  65     if (!RtlDosPathNameToNtPathName_U( lpPathName, &nt_name, NULL, NULL ))
  66     {
  67         SetLastError( ERROR_PATH_NOT_FOUND );
  68         return INVALID_HANDLE_VALUE;
  69     }
  70
  71     attr.Length = sizeof(attr);
  72     attr.RootDirectory = 0;
  73     attr.Attributes = OBJ_CASE_INSENSITIVE;
  74     attr.ObjectName = &nt_name;
  75     attr.SecurityDescriptor = NULL;
  76     attr.SecurityQualityOfService = NULL;
  77
  78     status = NtOpenFile( &file, 0, &attr, &io, 0,
  79                          FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
  80     RtlFreeUnicodeString( &nt_name );
  81
  82     if (status != STATUS_SUCCESS)
  83     {
  84         SetLastError( RtlNtStatusToDosError(status) );
  85         return INVALID_HANDLE_VALUE;
  86     }
  87
  88     SERVER_START_REQ( create_change_notification )
  89     {
  90         req->handle  = file;
  91         req->subtree = bWatchSubtree;
  92         req->filter  = dwNotifyFilter;
  93         if (!wine_server_call_err( req )) ret = reply->handle;
  94     }
  95     SERVER_END_REQ;
  96     CloseHandle( file );
  97     return ret;
  98 }
  99
 100 /****************************************************************************
 101  *              FindNextChangeNotification (KERNEL32.@)
 102  */
 103 BOOL WINAPI FindNextChangeNotification( HANDLE handle )
 104 {
 105     BOOL ret;
 106
 107     TRACE("%p\n",handle);
 108
 109     SERVER_START_REQ( next_change_notification )
 110     {
 111         req->handle = handle;
 112         ret = !wine_server_call_err( req );
 113     }
 114     SERVER_END_REQ;
 115     return ret;
 116 }
 117
 118 /****************************************************************************
 119  *              FindCloseChangeNotification (KERNEL32.@)
 120  */
 121 BOOL WINAPI FindCloseChangeNotification( HANDLE handle )
 122 {
 123     return CloseHandle( handle );
 124 }
 125
 126 /***********************************************************************
 127 *       FileCDR (KERNEL.130)
 128 */
 129 FARPROC16 WINAPI FileCDR16(FARPROC16 x)
 130 {
 131     FIXME("(%p): stub\n", x);
 132     return (FARPROC16)TRUE;
 133 }
 134
 135 BOOL WINAPI ReadDirectoryChangesW( HANDLE handle, LPVOID buffer, DWORD len, BOOL subtree,
 136                                    DWORD filter, LPDWORD returned, LPOVERLAPPED overlapped,
 137                                    LPOVERLAPPED_COMPLETION_ROUTINE completion )
 138 {
 139     FIXME( "%p %p 0x%08lx %d 0x%08lx %p %p %p\n", handle, buffer, len, subtree, filter,
 140            returned, overlapped, completion );
 141
 142     SetLastError( ERROR_INVALID_FUNCTION );
 143     return FALSE;
 144 }